linux-kernel - [PATCH 11/14] sysv: Remove writepage implementation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20231215200245.748418-12-willy@infradead.org>
Date: Fri, 15 Dec 2023 20:02:42 +0000
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
	Christoph Hellwig <hch@....de>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org
Subject: [PATCH 11/14] sysv: Remove writepage implementation

If the filesystem implements migrate_folio and writepages, there is
no need for a writepage implementation.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/sysv/itree.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 725981474e5f..410ab2a44d2f 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -8,6 +8,7 @@
 
 #include <linux/buffer_head.h>
 #include <linux/mount.h>
+#include <linux/mpage.h>
 #include <linux/string.h>
 #include "sysv.h"
 
@@ -456,9 +457,10 @@ int sysv_getattr(struct mnt_idmap *idmap, const struct path *path,
 	return 0;
 }
 
-static int sysv_writepage(struct page *page, struct writeback_control *wbc)
+static int sysv_writepages(struct address_space *mapping,
+		struct writeback_control *wbc)
 {
-	return block_write_full_page(page,get_block,wbc);
+	return mpage_writepages(mapping, wbc, get_block);
 }
 
 static int sysv_read_folio(struct file *file, struct folio *folio)
@@ -503,8 +505,9 @@ const struct address_space_operations sysv_aops = {
 	.dirty_folio = block_dirty_folio,
 	.invalidate_folio = block_invalidate_folio,
 	.read_folio = sysv_read_folio,
-	.writepage = sysv_writepage,
+	.writepages = sysv_writepages,
 	.write_begin = sysv_write_begin,
 	.write_end = generic_write_end,
+	.migrate_folio = buffer_migrate_folio,
 	.bmap = sysv_bmap
 };
-- 
2.42.0